Cod sursa(job #2008965)

Utilizator mjmilan11Mujdar Milan mjmilan11 Data 8 august 2017 10:37:20
Problema Buline Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.87 kb
#include<iostream>
#include<fstream>
#include<queue>

using namespace std;

ifstream fin("buline.in");
ofstream fout("buline.out");

int i,n,maxi,v[400004],l,sum,i1,poz,semn,s[400004];
deque<int> dq;

int main()
{
    fin>>n;
    for(i=1;i<=n;i++)
    {
        fin>>v[i]>>semn;
        if(semn==0)
            v[i]*=-1;
    }
    for(i=1;i<=n;i++)
        v[i+n]=v[i];
    for(i=1;i<=2*n;i++)
        s[i]=s[i-1]+v[i];
    dq.push_back(1);
    for(i=2;i<=2*n;i++)
    {
        if(i-dq.front()>n)
            dq.pop_front();
        if(s[i]-s[dq.front()]>maxi)
        {
            maxi=s[i]-s[dq.front()];
            poz=dq.front()+1;
            l=i-dq.front();
        }
        while(!dq.empty() and s[i]<s[dq.back()])
            dq.pop_back();
        dq.push_back(i);
    }
    fout << maxi << ' ' << poz << ' '<< l;
    return 0;

}